Glass-molding machine.



. J. MILLER.

` GLASS MOLDINGMAGHINE. MPLICLTION FILED Umea; 1909.

Patented 0Ct.19,i909.

z SHEETS-SHEET 1.

. /lvl/E/vme WILLIAM MILLER ATTORNEYS W. J. MILLER.

GLASS MOLDING MACHINE.

- 4 APPLIOATION FILED rmms, 1909. I 937,9. Patented oct.- 19,1909.'

- l l. @sums-annif .2.

moe/vm WITNESSES i all 'whom tt nitty concern: i

UNITED srnrns PATENT crimen.A

WILLIAM J. MILLER, oF eoFFEYvI'LLE, KANSAS..-

GjLAss-MOLDING MACHINE.

i spemation of Letters Patent,

Patented oct. 19, 1909.

Application med February 23, 1909; Serial No. 479,517.

' Beit known that I, WILLIAM J.'M1I.LER, a

citizen of the United States, kand a resident of Coifeyville, in thecounty of Montgomery and State of Kansas, have invented certain new anduseful Improvements in Glass- Molding Machines, of which vthe followingisa specification.

My invention 1s an improvement in glass molding machines, and consistsin certain-l novel constructions and combinations of parts hereinafterdescribed and claimed.

Theobject `of theinvention-is to provide i it valvefor .operating all ofthediii'erent mechanisms. 1n semi-automatic vmachines. of

11,1905, Referring to the .drawings'forming a part i hereof-Figure lis aside viewof a portion of a molding machine provided with theimpro-vement, the novel features being shown y ;1n full lines; Fig. 2isa longitudinal section through thesaid valve, and Fig. 3 is a sec jtion on the line 3-3 of Fig. 1.

column or spindle 1 on which is 'rotatably mounted a tablev2, whichcarries the molds The glass blowing machine. consists of a 3. Anintermittent rotary-movement is imparted to the table -by means of anysuitable mechanism connecting a sleeve 6 loosely en;

`circling the spindle l 'below the table- 2, with the piston rod 7 of an,air cylinder 8.

In the construction shown, the table 2 is provided withjfive blow molds,one for charging, one for pressing, one for blowing, onefor discharging,and one which is per;

` mitted to cool before charging', so that all` of the operations abovementionedv can take place simultaneously. It will be understood .thateach intermittent movement of the table At the charging' position isarranged apair other, and

'of shears, which are operated by the piston 31 of-a cylinder 15, Whichis provided with `an integral split bearing 16, encirclingthe end theywill move from each other.

Each end of the cylinder is provided with4 la port 40, 41, and the portsare controlled by a 'valve 42, which may' be of any suitableconstruction, and is operated bymeans of a' lever 43, whose free end 44extends to a point convenient for ,engagement by the gatherer ashe--places lthe charge in the mold. As ."shown itis in position forengagement by thepuntyr f The'valve 42 beforementioned operates a "valveplug in a casing or cylinder 421,1hav ing removable heads 48 and V49,secured to the cylinder by screws 50. The lower head 49 is providedWith-an extended bearing or hub ljthrough which slides a stem 52, and

'a packing 52ans arranged in the bearing, the packing being secured inplace by a packing nut 52". Thle stem is provided with a head 53 forengaging the valve and the head 49 of the cylinder is recessed as at 54toreceive the head 53, so that when the stem is in its lowermostposition the surface of the head is flush with the innersurface of thecylinder head..

The valve cas-ing isprovide'd with ports 55 and 5 6, and with an exhaustopening57. The port 40 of the cylinder 15 connects with the port 55' ofthe casing-by a pipe 40a, from which'branches 40h, 40V and 40d lead tothe cylinders 140, 141 and 8 respectively, .the cylinder 140 beinconnected with the blowing apparatus, `t l mold clamping apparatus, andthe cylinder 8 with the table rotating mechanism. The port41; of thecylinder 15A is connected by a pipe ,41a with the port 56 of the valvecasing, and by ,branchpipes 411341c and 41f1 with the cylinders 140, 141and Srespectively..

The valve plug 59 is provided` with a groove 59ajwhichv is adapted toconnect the ports 55 or 56 with the exhaust port 57, de- 'pending uponthe position of the'A plug, and the casing is provided with an inletport 60 which,` is adapted to be connected with the port 56 by means.of-v openings '62A and 63 in the casing and plug'respectively, and withthe port 55 when the plug is in lowered posi` tion. The stem 52 beforementioned is operated b`y 4means-of 4an arm 64 adjustably se- 'curedonarod or link 65 to be presently described, andthe valve casing issecured to a standard 66 supported by the base 67 of the machine,to-Which base the spindle 1 is also connected, by means of asplit'bearing 68.

. The lever 43.befor`e mentioned is pivotedj sol e cylinder 1,41 withthe to a; bracket 69 extending from the valve provided'w'ith an openingforming an outlet i i for the valve casing 42a, but normally closed by aloose fitting valve 72 whose stem-.projects through the casing and is inposition for engagement by the lever 43, the valve being normallysupported in closed-position by the spring 73. The valve plug 59 isguided in its movement by a pin 74 arranged transversely of the valvecaslng and engagating `the shears, raising the blow head, rel

leasing the mold clamping apparatus, and turning thetable. At -thesame'time the port 56 is in communication with the eX- haust, thusexhausting the pipe 41EL and its branches. When the link 65 movesupward, the valve 59 'will be lifted, thus admitting fluid tothe.opposite ends of the cylinders, whereby to open the shears, to lowerthe blow head,.clamp the moldand retract lthe that the valve plug 59 islifted Vthus operata conneetlon between the other port and the tableturning mechanism.

The link 65 before mentioned, has its lower en d connected with thelever 76 pivoted as at 77 beneath the table, the central portion of thelever being connected with a rod 78 whose upperend engages one of' a.vs'eries of openings inthe lower'tabl'e, whereby to lock the table atthe end of each inter- -mittent movement.' The upper end of the link isconnected to one arm ofl an elbow lever- 80, pivoted to a sleeve 8l onthe standard 66, and the other arm of the elbow lever is engaged by atrip 82 on an arm 83 secured to the plunger stem 84. The'trip 82 ismounted to yield on the downward movement of the arm and on the upwardmovement it operates the elbow lever to unlock the table, the linkmoving downward.

A spring 85 is connected with they rst named arm of the' elbow lever forreturning the lever to its original position, and it 1s upon the. upwardmovement of the link ing the cylinders as before mentioned.

The valve plug\ is retained in its upper position, by means of the fluidpressure which leaks ast the plug and fills the space therebelow, t eplug being not aperfect-lit in the casing. This pressure and thefrictionof the plug against the casing prevents its falling of its own weight.However, when the air is exhausted at 72 the pressure is then-greaterabove than below and it is forced to the bottom of the casing.

The valve plug 59 is pushed up by the upward movement of the link,through the medium of the small piston rod which passes through .thelower head of the valve casing, and is /held up by the link until thetable is again unlocked and the link depressed. By this time enough airhas escaped -past the valve plug to the lower end of the casing to fillthe space below the plug and the pipe leading to the small valve 42, thesaid valve being at this time closed at the saine air pressure as isabove the plug. The friction of the plug against the casing holds itsuspended until the air below the plug is allowedto escape the valve 42,the said air escaping faster than it can leak past the 'plug thuslowering the pressure beneath the plug and since there is full pressureabove the plug 'it is forced to the bottom of the casing.

1. In a machine of the class described, the combination with a pluralityof fluid operated cylinders for the purpose set forth, of a valvecasing, provided upon one side with an inlet and upon the other with anexhaust, and with 'a port upon each side of the eX- haust, a connectionbetween one of said ports and one end of each of .said cylinders, aconnection between the other port and the other end of each of'saidcylinders, a plug in the casing provided with means for connecting theinlet with one of said ports when the valve is in uppermost position andwith the other when in lowermost position, and with means forsimultaneously connecting they other of the ports with the exhaust, arod movable through the casing, and engaging the lower end of the plug,a locking device for the table, means connected with the said device'for engaging the rod to move the plug upward lwhen thel table-islocked,` said casing having an' exhaust below the plug, a valve remotefrom the casing for controlling the exhaust, and a lever controlling thevalve. i

2. lln a machine of the class described, the combination with aplurality of fluid operated cylinders for the purpose set forth, of avalve casing, provided upon one side with an inlet and upon the otherwith an exhaustV and with a port upon each side of the exhaust, aconnection between one of said ports, and-one end of each of saidcylinders,

Lother end of each of said cylinders, a plug i in the casingprovidedzwith means for connecting the inlet with one of said ports whenthe valve is in uppermost position andvwith the other when in lowermostposition, and with means for simultaneously connecting the other of theports with the exhaust, a locking device for the table, means connectedwith the said device for moving the plug upward when the table islocked, said casing` having an exhaust below the plug, a valve remotefrom the casing for controlling the exhaust and a lever for operatingthe valve. 3. In a machine of the class described, the combination witha plurality of iuid opermost position and with means for simultaneouslyconnecting the other of the ports' with the exhaust, a looking devicefor the table, means oonneqted with the said device for moving the plugupward when the-table is locked, said easing having an exhaustbelowtheplug, and a valve remote from the easing for controlling the exhaust.1

In a in'aohineof the class desoribed,-the

combination with a plurality of fluid operated cylinders, for thepurpose set forth, of a valve casing, provided with an inlet and withvan exhaust and with a port upon each side of the exhaust, a connectionbetween one of said ports, cylinders, a 'connection between the otherport and the other end of each of said cylinders, a plug in the casingprovided with means for oonnectingthe inlet with'one of' saidports whenthe valve is in uppermost position and with'the other.' when inlowermost position, and with means for simultaneously connecting theother of the 'ports with the exhaust, said easinghaving an exhaust below'the plug, and a valve for Controlling said exhaust.

5. In a machine of the class described, the combination Vwith a'plurality of fluid oper- 'below the plug.

, ated cylinders for the purpose set forth,

and. one end of each of said' yend of each of said cylinders,

- valve is in uppermost position and ated cylinders for the purpose setforth, of a valve easing, provided with an inlet and with an exhaust andwith a port upon each side of the exhausna conneetion between one ofsaidpoi'ts,` and one end of each of said cylinders, a connection betweenthe other port and the other end of each of said oylinders, a plug inthe casing provided with .means for connecting the inlet with one ofsaid ports when the valve is in uppermost position and with the otherwhen in lower- -niost position, and with means forsiinultaneously'oonneeting the other of the ports with the exhaust,means for looking the table and means in Connection with said means formoving the valve upward locked, the casing having an exhaust valve whenthe table is 6. In a machine of theclass described/the l combinationwith a pluralityof luid opero a valve lcasing, provided with an inletand with an exhaust and with a plurality of ports, a'oonneotion betweenone of said ports, and one end of each of said cylinders, a `oonneetioiibetween .the other port and the other easing provided with means forConnecting a plug in the the inlet with one of said ports when the withthe other when in lowermost position, and with means for simultaneouslyconnecting the 'other 'of the ports with the exhaust, and

means for controlling the movement of the plug. VVILLIAM J. MILLER.Witnesses ANNA Ii. Sass, Mnnoianns Sass.

